import turtle as t

t.speed(0)
n=input("what would you like to draw?")
if n=="正方形":
    for i in range(4):
        t.forward(100)
        t.left(90)
elif n=="圆"or n=="yuan":
    for i in range(360):
        t.forward(1)
        t.right(1)
elif n=="三角形":
    for i in range(3):
        t.forward(100)
        t.left(120)
else:
    t.write("我不知道你在说什么")
